Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 1 | /* |
| 2 | * (C) 2001 Clemson University and The University of Chicago |
| 3 | * |
| 4 | * See COPYING in top-level directory. |
| 5 | */ |
| 6 | |
| 7 | #include "protocol.h" |
Mike Marshall | 575e946 | 2015-12-04 12:56:14 -0500 | [diff] [blame] | 8 | #include "orangefs-kernel.h" |
| 9 | #include "orangefs-bufmap.h" |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 10 | |
| 11 | #include <linux/parser.h> |
| 12 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 13 | /* a cache for orangefs-inode objects (i.e. orangefs inode private data) */ |
| 14 | static struct kmem_cache *orangefs_inode_cache; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 15 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 16 | /* list for storing orangefs specific superblocks in use */ |
| 17 | LIST_HEAD(orangefs_superblocks); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 18 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 19 | DEFINE_SPINLOCK(orangefs_superblocks_lock); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 20 | |
| 21 | enum { |
| 22 | Opt_intr, |
| 23 | Opt_acl, |
| 24 | Opt_local_lock, |
| 25 | |
| 26 | Opt_err |
| 27 | }; |
| 28 | |
| 29 | static const match_table_t tokens = { |
| 30 | { Opt_acl, "acl" }, |
| 31 | { Opt_intr, "intr" }, |
| 32 | { Opt_local_lock, "local_lock" }, |
| 33 | { Opt_err, NULL } |
| 34 | }; |
| 35 | |
Martin Brandenburg | 482664d | 2016-08-12 12:02:31 -0400 | [diff] [blame] | 36 | uint64_t orangefs_features; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 37 | |
| 38 | static int parse_mount_options(struct super_block *sb, char *options, |
| 39 | int silent) |
| 40 | { |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 41 | struct orangefs_sb_info_s *orangefs_sb = ORANGEFS_SB(sb); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 42 | substring_t args[MAX_OPT_ARGS]; |
| 43 | char *p; |
| 44 | |
| 45 | /* |
| 46 | * Force any potential flags that might be set from the mount |
| 47 | * to zero, ie, initialize to unset. |
| 48 | */ |
| 49 | sb->s_flags &= ~MS_POSIXACL; |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 50 | orangefs_sb->flags &= ~ORANGEFS_OPT_INTR; |
| 51 | orangefs_sb->flags &= ~ORANGEFS_OPT_LOCAL_LOCK; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 52 | |
| 53 | while ((p = strsep(&options, ",")) != NULL) { |
| 54 | int token; |
| 55 | |
| 56 | if (!*p) |
| 57 | continue; |
| 58 | |
| 59 | token = match_token(p, tokens, args); |
| 60 | switch (token) { |
| 61 | case Opt_acl: |
| 62 | sb->s_flags |= MS_POSIXACL; |
| 63 | break; |
| 64 | case Opt_intr: |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 65 | orangefs_sb->flags |= ORANGEFS_OPT_INTR; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 66 | break; |
| 67 | case Opt_local_lock: |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 68 | orangefs_sb->flags |= ORANGEFS_OPT_LOCAL_LOCK; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 69 | break; |
| 70 | default: |
| 71 | goto fail; |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | return 0; |
| 76 | fail: |
| 77 | if (!silent) |
| 78 | gossip_err("Error: mount option [%s] is not supported.\n", p); |
| 79 | return -EINVAL; |
| 80 | } |
| 81 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 82 | static void orangefs_inode_cache_ctor(void *req) |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 83 | { |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 84 | struct orangefs_inode_s *orangefs_inode = req; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 85 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 86 | inode_init_once(&orangefs_inode->vfs_inode); |
| 87 | init_rwsem(&orangefs_inode->xattr_sem); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 88 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 89 | orangefs_inode->vfs_inode.i_version = 1; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 90 | } |
| 91 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 92 | static struct inode *orangefs_alloc_inode(struct super_block *sb) |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 93 | { |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 94 | struct orangefs_inode_s *orangefs_inode; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 95 | |
Mike Marshall | 2d4cae0 | 2016-02-04 13:48:16 -0500 | [diff] [blame] | 96 | orangefs_inode = kmem_cache_alloc(orangefs_inode_cache, GFP_KERNEL); |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 97 | if (orangefs_inode == NULL) { |
| 98 | gossip_err("Failed to allocate orangefs_inode\n"); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 99 | return NULL; |
| 100 | } |
| 101 | |
| 102 | /* |
| 103 | * We want to clear everything except for rw_semaphore and the |
| 104 | * vfs_inode. |
| 105 | */ |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 106 | memset(&orangefs_inode->refn.khandle, 0, 16); |
| 107 | orangefs_inode->refn.fs_id = ORANGEFS_FS_ID_NULL; |
| 108 | orangefs_inode->last_failed_block_index_read = 0; |
| 109 | memset(orangefs_inode->link_target, 0, sizeof(orangefs_inode->link_target)); |
| 110 | orangefs_inode->pinode_flags = 0; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 111 | |
| 112 | gossip_debug(GOSSIP_SUPER_DEBUG, |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 113 | "orangefs_alloc_inode: allocated %p\n", |
| 114 | &orangefs_inode->vfs_inode); |
| 115 | return &orangefs_inode->vfs_inode; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 116 | } |
| 117 | |
Peter Zijlstra | b2b0f6f | 2017-02-24 16:43:36 +0100 | [diff] [blame] | 118 | static void orangefs_i_callback(struct rcu_head *head) |
| 119 | { |
| 120 | struct inode *inode = container_of(head, struct inode, i_rcu); |
| 121 | struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode); |
| 122 | kmem_cache_free(orangefs_inode_cache, orangefs_inode); |
| 123 | } |
| 124 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 125 | static void orangefs_destroy_inode(struct inode *inode) |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 126 | { |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 127 | struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 128 | |
| 129 | gossip_debug(GOSSIP_SUPER_DEBUG, |
| 130 | "%s: deallocated %p destroying inode %pU\n", |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 131 | __func__, orangefs_inode, get_khandle_from_ino(inode)); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 132 | |
Peter Zijlstra | b2b0f6f | 2017-02-24 16:43:36 +0100 | [diff] [blame] | 133 | call_rcu(&inode->i_rcu, orangefs_i_callback); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 134 | } |
| 135 | |
| 136 | /* |
| 137 | * NOTE: information filled in here is typically reflected in the |
| 138 | * output of the system command 'df' |
| 139 | */ |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 140 | static int orangefs_statfs(struct dentry *dentry, struct kstatfs *buf) |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 141 | { |
| 142 | int ret = -ENOMEM; |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 143 | struct orangefs_kernel_op_s *new_op = NULL; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 144 | int flags = 0; |
| 145 | struct super_block *sb = NULL; |
| 146 | |
| 147 | sb = dentry->d_sb; |
| 148 | |
| 149 | gossip_debug(GOSSIP_SUPER_DEBUG, |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 150 | "orangefs_statfs: called on sb %p (fs_id is %d)\n", |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 151 | sb, |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 152 | (int)(ORANGEFS_SB(sb)->fs_id)); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 153 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 154 | new_op = op_alloc(ORANGEFS_VFS_OP_STATFS); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 155 | if (!new_op) |
| 156 | return ret; |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 157 | new_op->upcall.req.statfs.fs_id = ORANGEFS_SB(sb)->fs_id; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 158 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 159 | if (ORANGEFS_SB(sb)->flags & ORANGEFS_OPT_INTR) |
| 160 | flags = ORANGEFS_OP_INTERRUPTIBLE; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 161 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 162 | ret = service_operation(new_op, "orangefs_statfs", flags); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 163 | |
| 164 | if (new_op->downcall.status < 0) |
| 165 | goto out_op_release; |
| 166 | |
| 167 | gossip_debug(GOSSIP_SUPER_DEBUG, |
Mike Marshall | be57366 | 2016-01-13 11:38:14 -0500 | [diff] [blame] | 168 | "%s: got %ld blocks available | " |
| 169 | "%ld blocks total | %ld block size | " |
| 170 | "%ld files total | %ld files avail\n", |
| 171 | __func__, |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 172 | (long)new_op->downcall.resp.statfs.blocks_avail, |
| 173 | (long)new_op->downcall.resp.statfs.blocks_total, |
Mike Marshall | be57366 | 2016-01-13 11:38:14 -0500 | [diff] [blame] | 174 | (long)new_op->downcall.resp.statfs.block_size, |
| 175 | (long)new_op->downcall.resp.statfs.files_total, |
| 176 | (long)new_op->downcall.resp.statfs.files_avail); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 177 | |
| 178 | buf->f_type = sb->s_magic; |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 179 | memcpy(&buf->f_fsid, &ORANGEFS_SB(sb)->fs_id, sizeof(buf->f_fsid)); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 180 | buf->f_bsize = new_op->downcall.resp.statfs.block_size; |
Martin Brandenburg | 47b4948 | 2016-02-20 14:22:40 -0500 | [diff] [blame] | 181 | buf->f_namelen = ORANGEFS_NAME_MAX; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 182 | |
| 183 | buf->f_blocks = (sector_t) new_op->downcall.resp.statfs.blocks_total; |
| 184 | buf->f_bfree = (sector_t) new_op->downcall.resp.statfs.blocks_avail; |
| 185 | buf->f_bavail = (sector_t) new_op->downcall.resp.statfs.blocks_avail; |
| 186 | buf->f_files = (sector_t) new_op->downcall.resp.statfs.files_total; |
| 187 | buf->f_ffree = (sector_t) new_op->downcall.resp.statfs.files_avail; |
| 188 | buf->f_frsize = sb->s_blocksize; |
| 189 | |
| 190 | out_op_release: |
| 191 | op_release(new_op); |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 192 | gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_statfs: returning %d\n", ret); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 193 | return ret; |
| 194 | } |
| 195 | |
| 196 | /* |
| 197 | * Remount as initiated by VFS layer. We just need to reparse the mount |
| 198 | * options, no need to signal pvfs2-client-core about it. |
| 199 | */ |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 200 | static int orangefs_remount_fs(struct super_block *sb, int *flags, char *data) |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 201 | { |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 202 | gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_remount_fs: called\n"); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 203 | return parse_mount_options(sb, data, 1); |
| 204 | } |
| 205 | |
| 206 | /* |
| 207 | * Remount as initiated by pvfs2-client-core on restart. This is used to |
| 208 | * repopulate mount information left from previous pvfs2-client-core. |
| 209 | * |
| 210 | * the idea here is that given a valid superblock, we're |
| 211 | * re-initializing the user space client with the initial mount |
| 212 | * information specified when the super block was first initialized. |
| 213 | * this is very different than the first initialization/creation of a |
| 214 | * superblock. we use the special service_priority_operation to make |
| 215 | * sure that the mount gets ahead of any other pending operation that |
| 216 | * is waiting for servicing. this means that the pvfs2-client won't |
| 217 | * fail to start several times for all other pending operations before |
| 218 | * the client regains all of the mount information from us. |
| 219 | * NOTE: this function assumes that the request_mutex is already acquired! |
| 220 | */ |
Al Viro | 4599649 | 2016-03-25 19:56:34 -0400 | [diff] [blame] | 221 | int orangefs_remount(struct orangefs_sb_info_s *orangefs_sb) |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 222 | { |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 223 | struct orangefs_kernel_op_s *new_op; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 224 | int ret = -EINVAL; |
| 225 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 226 | gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_remount: called\n"); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 227 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 228 | new_op = op_alloc(ORANGEFS_VFS_OP_FS_MOUNT); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 229 | if (!new_op) |
| 230 | return -ENOMEM; |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 231 | strncpy(new_op->upcall.req.fs_mount.orangefs_config_server, |
Al Viro | 4599649 | 2016-03-25 19:56:34 -0400 | [diff] [blame] | 232 | orangefs_sb->devname, |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 233 | ORANGEFS_MAX_SERVER_ADDR_LEN); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 234 | |
| 235 | gossip_debug(GOSSIP_SUPER_DEBUG, |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 236 | "Attempting ORANGEFS Remount via host %s\n", |
| 237 | new_op->upcall.req.fs_mount.orangefs_config_server); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 238 | |
| 239 | /* |
Mike Marshall | adcf34a | 2016-02-24 16:54:27 -0500 | [diff] [blame] | 240 | * we assume that the calling function has already acquired the |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 241 | * request_mutex to prevent other operations from bypassing |
| 242 | * this one |
| 243 | */ |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 244 | ret = service_operation(new_op, "orangefs_remount", |
Mike Marshall | adcf34a | 2016-02-24 16:54:27 -0500 | [diff] [blame] | 245 | ORANGEFS_OP_PRIORITY | ORANGEFS_OP_NO_MUTEX); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 246 | gossip_debug(GOSSIP_SUPER_DEBUG, |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 247 | "orangefs_remount: mount got return value of %d\n", |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 248 | ret); |
| 249 | if (ret == 0) { |
| 250 | /* |
| 251 | * store the id assigned to this sb -- it's just a |
| 252 | * short-lived mapping that the system interface uses |
| 253 | * to map this superblock to a particular mount entry |
| 254 | */ |
Al Viro | 4599649 | 2016-03-25 19:56:34 -0400 | [diff] [blame] | 255 | orangefs_sb->id = new_op->downcall.resp.fs_mount.id; |
| 256 | orangefs_sb->mount_pending = 0; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 257 | } |
| 258 | |
| 259 | op_release(new_op); |
Martin Brandenburg | 482664d | 2016-08-12 12:02:31 -0400 | [diff] [blame] | 260 | |
Mike Marshall | f60fbdb | 2016-10-03 15:07:36 -0400 | [diff] [blame] | 261 | if (orangefs_userspace_version >= 20906) { |
Martin Brandenburg | 482664d | 2016-08-12 12:02:31 -0400 | [diff] [blame] | 262 | new_op = op_alloc(ORANGEFS_VFS_OP_FEATURES); |
| 263 | if (!new_op) |
| 264 | return -ENOMEM; |
| 265 | new_op->upcall.req.features.features = 0; |
| 266 | ret = service_operation(new_op, "orangefs_features", 0); |
| 267 | orangefs_features = new_op->downcall.resp.features.features; |
| 268 | op_release(new_op); |
| 269 | } else { |
| 270 | orangefs_features = 0; |
| 271 | } |
| 272 | |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 273 | return ret; |
| 274 | } |
| 275 | |
| 276 | int fsid_key_table_initialize(void) |
| 277 | { |
| 278 | return 0; |
| 279 | } |
| 280 | |
| 281 | void fsid_key_table_finalize(void) |
| 282 | { |
| 283 | } |
| 284 | |
| 285 | /* Called whenever the VFS dirties the inode in response to atime updates */ |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 286 | static void orangefs_dirty_inode(struct inode *inode, int flags) |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 287 | { |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 288 | struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 289 | |
| 290 | gossip_debug(GOSSIP_SUPER_DEBUG, |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 291 | "orangefs_dirty_inode: %pU\n", |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 292 | get_khandle_from_ino(inode)); |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 293 | SetAtimeFlag(orangefs_inode); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 294 | } |
| 295 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 296 | static const struct super_operations orangefs_s_ops = { |
| 297 | .alloc_inode = orangefs_alloc_inode, |
| 298 | .destroy_inode = orangefs_destroy_inode, |
| 299 | .dirty_inode = orangefs_dirty_inode, |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 300 | .drop_inode = generic_delete_inode, |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 301 | .statfs = orangefs_statfs, |
| 302 | .remount_fs = orangefs_remount_fs, |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 303 | .show_options = generic_show_options, |
| 304 | }; |
| 305 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 306 | static struct dentry *orangefs_fh_to_dentry(struct super_block *sb, |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 307 | struct fid *fid, |
| 308 | int fh_len, |
| 309 | int fh_type) |
| 310 | { |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 311 | struct orangefs_object_kref refn; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 312 | |
| 313 | if (fh_len < 5 || fh_type > 2) |
| 314 | return NULL; |
| 315 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 316 | ORANGEFS_khandle_from(&(refn.khandle), fid->raw, 16); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 317 | refn.fs_id = (u32) fid->raw[4]; |
| 318 | gossip_debug(GOSSIP_SUPER_DEBUG, |
| 319 | "fh_to_dentry: handle %pU, fs_id %d\n", |
| 320 | &refn.khandle, |
| 321 | refn.fs_id); |
| 322 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 323 | return d_obtain_alias(orangefs_iget(sb, &refn)); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 324 | } |
| 325 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 326 | static int orangefs_encode_fh(struct inode *inode, |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 327 | __u32 *fh, |
| 328 | int *max_len, |
| 329 | struct inode *parent) |
| 330 | { |
| 331 | int len = parent ? 10 : 5; |
| 332 | int type = 1; |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 333 | struct orangefs_object_kref refn; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 334 | |
| 335 | if (*max_len < len) { |
| 336 | gossip_lerr("fh buffer is too small for encoding\n"); |
| 337 | *max_len = len; |
| 338 | type = 255; |
| 339 | goto out; |
| 340 | } |
| 341 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 342 | refn = ORANGEFS_I(inode)->refn; |
| 343 | ORANGEFS_khandle_to(&refn.khandle, fh, 16); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 344 | fh[4] = refn.fs_id; |
| 345 | |
| 346 | gossip_debug(GOSSIP_SUPER_DEBUG, |
| 347 | "Encoding fh: handle %pU, fsid %u\n", |
| 348 | &refn.khandle, |
| 349 | refn.fs_id); |
| 350 | |
| 351 | |
| 352 | if (parent) { |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 353 | refn = ORANGEFS_I(parent)->refn; |
| 354 | ORANGEFS_khandle_to(&refn.khandle, (char *) fh + 20, 16); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 355 | fh[9] = refn.fs_id; |
| 356 | |
| 357 | type = 2; |
| 358 | gossip_debug(GOSSIP_SUPER_DEBUG, |
| 359 | "Encoding parent: handle %pU, fsid %u\n", |
| 360 | &refn.khandle, |
| 361 | refn.fs_id); |
| 362 | } |
| 363 | *max_len = len; |
| 364 | |
| 365 | out: |
| 366 | return type; |
| 367 | } |
| 368 | |
Julia Lawall | acaca36 | 2016-01-01 10:01:52 +0100 | [diff] [blame] | 369 | static const struct export_operations orangefs_export_ops = { |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 370 | .encode_fh = orangefs_encode_fh, |
| 371 | .fh_to_dentry = orangefs_fh_to_dentry, |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 372 | }; |
| 373 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 374 | static int orangefs_fill_sb(struct super_block *sb, |
| 375 | struct orangefs_fs_mount_response *fs_mount, |
Al Viro | 5c0dbbc | 2015-10-08 20:22:43 -0400 | [diff] [blame] | 376 | void *data, int silent) |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 377 | { |
| 378 | int ret = -EINVAL; |
| 379 | struct inode *root = NULL; |
| 380 | struct dentry *root_dentry = NULL; |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 381 | struct orangefs_object_kref root_object; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 382 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 383 | /* alloc and init our private orangefs sb info */ |
Martin Brandenburg | 05d31c5 | 2016-03-18 13:36:45 -0400 | [diff] [blame] | 384 | sb->s_fs_info = kzalloc(sizeof(struct orangefs_sb_info_s), GFP_KERNEL); |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 385 | if (!ORANGEFS_SB(sb)) |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 386 | return -ENOMEM; |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 387 | ORANGEFS_SB(sb)->sb = sb; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 388 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 389 | ORANGEFS_SB(sb)->root_khandle = fs_mount->root_khandle; |
| 390 | ORANGEFS_SB(sb)->fs_id = fs_mount->fs_id; |
| 391 | ORANGEFS_SB(sb)->id = fs_mount->id; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 392 | |
Al Viro | 5c0dbbc | 2015-10-08 20:22:43 -0400 | [diff] [blame] | 393 | if (data) { |
| 394 | ret = parse_mount_options(sb, data, silent); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 395 | if (ret) |
| 396 | return ret; |
| 397 | } |
| 398 | |
| 399 | /* Hang the xattr handlers off the superblock */ |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 400 | sb->s_xattr = orangefs_xattr_handlers; |
| 401 | sb->s_magic = ORANGEFS_SUPER_MAGIC; |
| 402 | sb->s_op = &orangefs_s_ops; |
| 403 | sb->s_d_op = &orangefs_dentry_operations; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 404 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 405 | sb->s_blocksize = orangefs_bufmap_size_query(); |
| 406 | sb->s_blocksize_bits = orangefs_bufmap_shift_query(); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 407 | sb->s_maxbytes = MAX_LFS_FILESIZE; |
| 408 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 409 | root_object.khandle = ORANGEFS_SB(sb)->root_khandle; |
| 410 | root_object.fs_id = ORANGEFS_SB(sb)->fs_id; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 411 | gossip_debug(GOSSIP_SUPER_DEBUG, |
| 412 | "get inode %pU, fsid %d\n", |
| 413 | &root_object.khandle, |
| 414 | root_object.fs_id); |
| 415 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 416 | root = orangefs_iget(sb, &root_object); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 417 | if (IS_ERR(root)) |
| 418 | return PTR_ERR(root); |
| 419 | |
| 420 | gossip_debug(GOSSIP_SUPER_DEBUG, |
| 421 | "Allocated root inode [%p] with mode %x\n", |
| 422 | root, |
| 423 | root->i_mode); |
| 424 | |
| 425 | /* allocates and places root dentry in dcache */ |
| 426 | root_dentry = d_make_root(root); |
Al Viro | b05a785 | 2015-10-08 20:18:00 -0400 | [diff] [blame] | 427 | if (!root_dentry) |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 428 | return -ENOMEM; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 429 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 430 | sb->s_export_op = &orangefs_export_ops; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 431 | sb->s_root = root_dentry; |
| 432 | return 0; |
| 433 | } |
| 434 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 435 | struct dentry *orangefs_mount(struct file_system_type *fst, |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 436 | int flags, |
| 437 | const char *devname, |
| 438 | void *data) |
| 439 | { |
| 440 | int ret = -EINVAL; |
| 441 | struct super_block *sb = ERR_PTR(-EINVAL); |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 442 | struct orangefs_kernel_op_s *new_op; |
Mike Marshall | 1be21f8 | 2015-09-29 15:26:37 -0400 | [diff] [blame] | 443 | struct dentry *d = ERR_PTR(-EINVAL); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 444 | |
| 445 | gossip_debug(GOSSIP_SUPER_DEBUG, |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 446 | "orangefs_mount: called with devname %s\n", |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 447 | devname); |
| 448 | |
| 449 | if (!devname) { |
| 450 | gossip_err("ERROR: device name not specified.\n"); |
| 451 | return ERR_PTR(-EINVAL); |
| 452 | } |
| 453 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 454 | new_op = op_alloc(ORANGEFS_VFS_OP_FS_MOUNT); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 455 | if (!new_op) |
| 456 | return ERR_PTR(-ENOMEM); |
| 457 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 458 | strncpy(new_op->upcall.req.fs_mount.orangefs_config_server, |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 459 | devname, |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 460 | ORANGEFS_MAX_SERVER_ADDR_LEN); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 461 | |
| 462 | gossip_debug(GOSSIP_SUPER_DEBUG, |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 463 | "Attempting ORANGEFS Mount via host %s\n", |
| 464 | new_op->upcall.req.fs_mount.orangefs_config_server); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 465 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 466 | ret = service_operation(new_op, "orangefs_mount", 0); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 467 | gossip_debug(GOSSIP_SUPER_DEBUG, |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 468 | "orangefs_mount: mount got return value of %d\n", ret); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 469 | if (ret) |
| 470 | goto free_op; |
| 471 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 472 | if (new_op->downcall.resp.fs_mount.fs_id == ORANGEFS_FS_ID_NULL) { |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 473 | gossip_err("ERROR: Retrieved null fs_id\n"); |
| 474 | ret = -EINVAL; |
| 475 | goto free_op; |
| 476 | } |
| 477 | |
Mike Marshall | 1be21f8 | 2015-09-29 15:26:37 -0400 | [diff] [blame] | 478 | sb = sget(fst, NULL, set_anon_super, flags, NULL); |
| 479 | |
| 480 | if (IS_ERR(sb)) { |
| 481 | d = ERR_CAST(sb); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 482 | goto free_op; |
| 483 | } |
| 484 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 485 | ret = orangefs_fill_sb(sb, |
Al Viro | 5c0dbbc | 2015-10-08 20:22:43 -0400 | [diff] [blame] | 486 | &new_op->downcall.resp.fs_mount, data, |
Mike Marshall | 1be21f8 | 2015-09-29 15:26:37 -0400 | [diff] [blame] | 487 | flags & MS_SILENT ? 1 : 0); |
| 488 | |
| 489 | if (ret) { |
| 490 | d = ERR_PTR(ret); |
| 491 | goto free_op; |
| 492 | } |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 493 | |
| 494 | /* |
| 495 | * on successful mount, store the devname and data |
| 496 | * used |
| 497 | */ |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 498 | strncpy(ORANGEFS_SB(sb)->devname, |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 499 | devname, |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 500 | ORANGEFS_MAX_SERVER_ADDR_LEN); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 501 | |
| 502 | /* mount_pending must be cleared */ |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 503 | ORANGEFS_SB(sb)->mount_pending = 0; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 504 | |
| 505 | /* |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 506 | * finally, add this sb to our list of known orangefs |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 507 | * sb's |
| 508 | */ |
Al Viro | 4599649 | 2016-03-25 19:56:34 -0400 | [diff] [blame] | 509 | gossip_debug(GOSSIP_SUPER_DEBUG, |
| 510 | "Adding SB %p to orangefs superblocks\n", |
| 511 | ORANGEFS_SB(sb)); |
| 512 | spin_lock(&orangefs_superblocks_lock); |
| 513 | list_add_tail(&ORANGEFS_SB(sb)->list, &orangefs_superblocks); |
| 514 | spin_unlock(&orangefs_superblocks_lock); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 515 | op_release(new_op); |
Martin Brandenburg | 482664d | 2016-08-12 12:02:31 -0400 | [diff] [blame] | 516 | |
Mike Marshall | f60fbdb | 2016-10-03 15:07:36 -0400 | [diff] [blame] | 517 | if (orangefs_userspace_version >= 20906) { |
Martin Brandenburg | 482664d | 2016-08-12 12:02:31 -0400 | [diff] [blame] | 518 | new_op = op_alloc(ORANGEFS_VFS_OP_FEATURES); |
| 519 | if (!new_op) |
| 520 | return ERR_PTR(-ENOMEM); |
| 521 | new_op->upcall.req.features.features = 0; |
| 522 | ret = service_operation(new_op, "orangefs_features", 0); |
| 523 | orangefs_features = new_op->downcall.resp.features.features; |
| 524 | op_release(new_op); |
| 525 | } else { |
| 526 | orangefs_features = 0; |
| 527 | } |
| 528 | |
Mike Marshall | 1be21f8 | 2015-09-29 15:26:37 -0400 | [diff] [blame] | 529 | return dget(sb->s_root); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 530 | |
| 531 | free_op: |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 532 | gossip_err("orangefs_mount: mount request failed with %d\n", ret); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 533 | if (ret == -EINVAL) { |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 534 | gossip_err("Ensure that all orangefs-servers have the same FS configuration files\n"); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 535 | gossip_err("Look at pvfs2-client-core log file (typically /tmp/pvfs2-client.log) for more details\n"); |
| 536 | } |
| 537 | |
| 538 | op_release(new_op); |
| 539 | |
Mike Marshall | 1be21f8 | 2015-09-29 15:26:37 -0400 | [diff] [blame] | 540 | return d; |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 541 | } |
| 542 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 543 | void orangefs_kill_sb(struct super_block *sb) |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 544 | { |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 545 | gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_kill_sb: called\n"); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 546 | |
Al Viro | 524b1d3 | 2016-02-16 21:08:29 -0500 | [diff] [blame] | 547 | /* provided sb cleanup */ |
| 548 | kill_anon_super(sb); |
| 549 | |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 550 | /* |
| 551 | * issue the unmount to userspace to tell it to remove the |
| 552 | * dynamic mount info it has for this superblock |
| 553 | */ |
Al Viro | 4599649 | 2016-03-25 19:56:34 -0400 | [diff] [blame] | 554 | orangefs_unmount_sb(sb); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 555 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 556 | /* remove the sb from our list of orangefs specific sb's */ |
Al Viro | 4599649 | 2016-03-25 19:56:34 -0400 | [diff] [blame] | 557 | |
| 558 | spin_lock(&orangefs_superblocks_lock); |
| 559 | __list_del_entry(&ORANGEFS_SB(sb)->list); /* not list_del_init */ |
| 560 | ORANGEFS_SB(sb)->list.prev = NULL; |
| 561 | spin_unlock(&orangefs_superblocks_lock); |
| 562 | |
| 563 | /* |
| 564 | * make sure that ORANGEFS_DEV_REMOUNT_ALL loop that might've seen us |
| 565 | * gets completed before we free the dang thing. |
| 566 | */ |
Martin Brandenburg | 1d50361 | 2016-08-16 11:38:14 -0400 | [diff] [blame] | 567 | mutex_lock(&orangefs_request_mutex); |
| 568 | mutex_unlock(&orangefs_request_mutex); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 569 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 570 | /* free the orangefs superblock private data */ |
| 571 | kfree(ORANGEFS_SB(sb)); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 572 | } |
| 573 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 574 | int orangefs_inode_cache_initialize(void) |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 575 | { |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 576 | orangefs_inode_cache = kmem_cache_create("orangefs_inode_cache", |
| 577 | sizeof(struct orangefs_inode_s), |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 578 | 0, |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 579 | ORANGEFS_CACHE_CREATE_FLAGS, |
| 580 | orangefs_inode_cache_ctor); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 581 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 582 | if (!orangefs_inode_cache) { |
| 583 | gossip_err("Cannot create orangefs_inode_cache\n"); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 584 | return -ENOMEM; |
| 585 | } |
| 586 | return 0; |
| 587 | } |
| 588 | |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 589 | int orangefs_inode_cache_finalize(void) |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 590 | { |
Yi Liu | 8bb8aef | 2015-11-24 15:12:14 -0500 | [diff] [blame] | 591 | kmem_cache_destroy(orangefs_inode_cache); |
Mike Marshall | 1182fca | 2015-07-17 10:38:15 -0400 | [diff] [blame] | 592 | return 0; |
| 593 | } |